Metering circuit using PbS, PbSe

Published:2011/11/11 2:05:00 Author:May | Keyword: Metering, PbS, PbSe | From:SeekIC

This circuit canbeused for detecting infrared light, for example, it is used for detecting infrared band light signal in spectrophotometer. Amplifier output voltage Vo=Is·Rd·Rf/Ri (1)wherein : Is-signal current; Rd-optical detector essential resistance Dector can bemade by lead sulphide (PbS) or lead selenide (PbSe), and at room temperature, PbS response wave length range is 1.0~3.5µm, PbSe reponse wave length can reach 4.5µm. (ZhuXiaosong)



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